What was the main idea of the monroe doctrine?

it was a proclamation of war between the u. s. and mexico.
it was a warning for european countries to stop colonization in the western hemisphere.
it was an agreement to give territories to the native americans.
it was a list of complaints from the u. s. to european countries.

By the end of the 1800s, there was a change in the nature of the immigrants coming to the united states. immigration from northern europe—england, ireland, germany, and scandinavia—declined, while immigration from italy, russia, and austria-hungary grew. in fact, between 1900 and 1910, more than three-fourths of all immigrants came from these three countries. unfortunately, these countries were far removed england, the home of our founders, and the immigrants who came from them had a hard time adjusting to life in their new country.

The primary goal of the abolitionist movement was to a) immediately emancipate or free all enslaved people. b) allow the gradual release of enslaved people. c) end the importation of enslaved people from africa. d) make mandatory the education of all enslaved people.

Which character are always present in all living organisms